大渡河泸定水电站厂房振动分析

Analysis on the Powerhouse Vibration of Luding Hydropower Station

通过对泸定水电站厂房全流道流体、厂房混凝土结构和机组的仿真模拟,建立了泸定水电站厂房全流道湍流-厂房整体结构流固耦合振动分析的全耦合仿真模型,对厂房结构在设计工况下的耦联振动时程响应进行计算,并依据计算结果对厂房整体结构进行了振动研究。结果表明,厂房整体及局部构件均满足振动复核的相关规定。

The fluid-structure coupling vibration model based on overall turbulence-structure of powerhouse in Luding Hydropower Station is established for analyzing the coupled vibration of flow passage, powerhouse concrete structures and generating units. The time response of powerhouse coupling vibration on design operating duty is calculated, and as a basis, the overall vibration of the powerhouse is analyzed. The simulations show that the vibrations of overall powerhouse and local components can meet the requirements of specifications.